Wowzer, this has been a lot to absorb, but I was able to get the multisite installation to finally work with a dev version and two production versions on the same server.

I totally understand where the gaps have been for those who are new to how this all works in relation to the way some may be used to dealing with Apache and PHP. I’m completely there with you, the way this all works is so different and there are a lot of assumptions made by those who understand all this. Not saying that is a bad thing, as it’s impossible for those who understand this to know what stage of knowledge new users are at.

While this is all fresh in my head (at my age retention is priceless) I would like to submit a write up on how I went about making this happen and the areas I got stuck. Hopefully this will help new people like me as I saw a lot of posts from others who I related to in their frustrations.

What would be the best thing for me to do? Should I add my experience to this topic, or should I create a new one, and in what category would be best for such a post? Or … should I just write up an article on my own site and then submit a post letting people know where to find it. (My preference is to add the post here)

I was attempting to do the stable branch update so rebuilding the container and it failed to work when pre-compiling the assets. So I looked around and similar issues happen when people have plugins installed so I double checked and we have none other than the defaults.
Then I went into the container and manually run the command with --trace and this is what I got back.
rake aborted!
ActiveRecord::StatementInvalid: PG::UndefinedTable: ERROR: relation "stylesheet_cache" does not exist
LINE 1: …

but I thought it might be worth bringing to the attention of this thread. Any ideas how to resolve it without editing web.template.yml?

I personally think it’s the superior way. There seems to be issues with multisite. I’ve got it to work, but it didn’t feel right… like there might be issues down the road if things changed. My hosting is all 1 container setups. Your call. Goodluck.